type: 112_or_110author: Chytiris, Leonidas_or_Mavromatidis, Ilias_or_Charmandaris, Evangelos_or_Anninos, Loukas_or_Katsafados, PetrossubjectTerm: I. MATHEMATICS AND COMPUTER SCIENCE_or_V. LAW AND SOCIAL SCIENCES_or_II. NATURAL SCIENCES AND AGRICULTURAL SCIENCES